| SendMessage, SendMessageBynum, SendMessageByString |
| VB声明 | |
| Declare Function SendMessage& Lib "user32"
Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As
Long, lParam As Any) Declare Function SendMessageBynum& Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) Declare Function SendMessageByString& Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As String) |
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| 说明 | |
| 调用一个窗口的窗口函数，将一条消息发给那个窗口。除非消息处理完毕，否则该函数不会返回。SendMessageBynum， SendMessageByString是该函数的“类型安全”声明形式 | |
| 返回值 | |
| Long，由具体的消息决定 | |
| 参数表 | |
| 参数 | 类型及说明 |
| hwnd | Long，要接收消息的那个窗口的句柄 |
| wMsg | Long，消息的标识符 |
| wParam | Long，具体取决于消息 |
| lParam | Any，具体取决于消息 |
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